PAC1934 Energy Metering Using Linux® Step 1

Attach PAC1934 Click board™

• Attach the PAC1934 Click board. The PAC1934 Integrated Circuit (IC) has specialized hardware to make meter measurements and accept commands from the microcontroller (MCU).

Attach OLED W Click

Attach the OLED W Click board to mikroBUS™ 2 for displaying meter measurements.

Connect USB and Ethernet from ATSAMA5D27-SOM1-EK1 to PC Host

• Connect a USB Type-A to Micro-B cable from the PC host to J-Link-OB Micro-USB port (J10). This port is configured for serial communication to the host processor’s console.
• Connect the Ethernet cable RJ45 (J15) from the board to the PC host. Having an Ethernet connection from the computer makes it easier to transfer files to and from this board.

Verify Jumper Settings

• J22 – Shorted (Enable 3v3 on MBUS1)
• J28 – Shorted (Enable 3V3 on MBUS2)
• J13 – Open (Disables System on Module (SOM) boot memories, closed = disable)
• J7 – Open (Enable J-Link-OB for serial communication, closed = disable)
• J9 – Open (Enable J-Link CDC, closed = disable)

Prepare SD Card for the Embedded Linux^® image

• Two-gigabytes or more Secure Digital (SD) card is required. This non-volatile memory card is used to store the Linux Image.

Connect a 5V Power Supply to the PAC1934 Click

• Connect the 5V power supply to PAC1934 Click S1+, S2+, S3+ and S4+ pins as shown.
• Connect ground to PAC1934 Click GND pin as shown.

Attach Four 47 Ω Resistors from PAC1934 Click Board to Ground

• Connect each 47 Ω resistor to PAC1934 Click S1, S2, S3 and S4 pins as shown.
• Connect resistors to a common ground.